79561802379 has 8 divisors (see below), whose sum is σ = 106537693392. Its totient is φ = 52813556480.

The previous prime is 79561802347. The next prime is 79561802381. The reversal of 79561802379 is 97320816597.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79561802379 - 2⁵ = 79561802347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79561802479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56910462 + ... + 56911859.

It is an arithmetic number, because the mean of its divisors is an integer number (13317211674).

Almost surely, 2^79561802379 is an apocalyptic number.

79561802379 is a deficient number, since it is larger than the sum of its proper divisors (26975891013).

79561802379 is a wasteful number, since it uses less digits than its factorization.

79561802379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113822557.

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 79561802379 in words is "seventy-nine billion, five hundred sixty-one million, eight hundred two thousand, three hundred seventy-nine".